Lawn Sprinkler Head Conversion Sleeve

ABSTRACT

This invention relates to a sprinkler head conversion sleeve/base member made of durable plastic, it is comprised of a cylindrical sleeve having an opening at the upper end with an external thread for attachment to a gear driven sprinkler head. The lower end of said sleeve having an external thread for attachment to the internal threads of an in-ground sprinkler housing. The open bottom of the sleeve receives water from the lower chamber of the existing sprinkler housing with no direct connect to a pressurized water system, water enters from either the bottom or the side orifice with no additional plumbing. The sleeve also supports internal protrusions which facilitate the mechanical operation of a gear driven sprinkler head used in conjunction with my sleeve The gear driven head referenced numerous times in this application is not part of this application. The embodiment of this invention is a single sleeve with characteristics outlined above and in the claims and description.

CROSS-REFERENCE TO RELATED APPLICATIONS

Previous provisional application filed on Jul. 2, 2018

Application No. 62/763,764

FEDERALLY SPONSORED RESEARCH DEVELOPMENT

(Not Applicable)

SEQUENCE LISTING REFERENCE

(Not Applicable)

BACKGROUND

Utility Patent Application. For Lawn Sprinkler Head Conversion.

For purposes of irrigating lawns there are currently 2 types of sprinkler heads used. One is the old-generation impact sprinkler head, the other is the more current gear-driven sprinkler head. My invention was created, designed and built by the inventor 37 CFR 5.2 provides a system for converting impact sprinkler systems to gear-driven systems within an existing Inground housing.

This invention is a device/sleeve for changing impact sprinkler heads to gear-driven rotary heads without digging up the existing housings. Impact type sprinkler heads are subject to frequent malfunction because of the exposed mechanisms. As a result they are subject to dirt, grime, and grass build-up which can inhibit the operation of the impulse mechanisms. More effectively, however, gear-driven sprinkler units are sealed and not subject to the same malfunctions as impact sprinklers and are basically trouble free.

SUMMARY OF INVENTION

For purposes of this document, the term my sleeve here-in-after will refer to the actual invention itself, and the term impact will be synonymous with impulse. The present invention is designed to quickly remove impulse/impact sprinkler heads from their housings, insert my sleeve into the housing, screw it in and then screw the rotary sprinkler head into my sleeve thus creating a gear-driven sprinkler system. The body of my sleeve may have a plurality of threads at both ends attached to a cylindrical body that may have a width and length to fit the cavity or housing of an Inground sprinkler system. My sleeve and other features of the invention will become apparent and better understood when referencing the following drawings, descriptions, and claims.

BRIEF DESCRIPTION OF DRAWINGS

FIG. 1: an orthographic projection showing details of my sleeve

The main sleeve body: FIG. 1 A

Three-dimension thumbnail: (not labeled)

Internal protrusions detail: FIG. 1 AA

Internal threads detail: FIG. 1 CC

External threads detail: FIG. 1 BB

FIG. 2: Cross-section and perspective of my sleeve

Internal threads: FIG. 2 CC (see detail CC)

External threads: FIG. 2 BB

Three-dimensional thumb nail of my sleeve (not labeled)

FIG. 3: Three-dimensional Drawings of characteristics of my sleeve labeled.

Body of my sleeve: FIG. 3 A

External threads: FIG. 3 BB

Internal threads at the bottom: FIG. 3 CC

Top flange: FIG. 3-D

Protrusions inside: FIG. 3 AA

FIG. 4: Process of removing impact sprinkler head:

Impact sprinkler head: FIG. 4 E

Removal from sprinkler housing: FIG. 4 EE

FIG. 5: Inserting and screwing my sleeve: A Into inground sprinkler housing:

EE and inserting and screwing gear driven unit F into my sleeve A.

DETAILED DESCRIPTION OF INVENTION

The following detailed description represents the best currently contemplated mode for carrying out the invention. The description is not to be taken in a limiting sense but is made merely for the purpose of illustrating the general purposes and principles of the invention. This is a single sleeve that when inserted into an existing inground sprinkler housing and supported buy new gear driven sprinkler heads, changes the entire complexity of the lawn sprinkling system. The purpose of this invention is such that it allows a person to remove old generation impact or impulse type sprinkler head from its housing FIG. 4 E in an Inground sprinkler system and insert My sleeve FIG. 5 A which allows a gear-driven sprinkler head FIG. 5 F to be threaded into it, changing the system from impulse to gear-driven. This invention is a cylindrical shaped sleeve hollow inside with protrusions running the length of the sleeve FIG. 1 detail A and FIG. 2 detail AA and has threads at both ends FIG. 1 BB and FIG. 2 BB and FIG. 3 BB to accommodate the functionality of the sleeve. The process is to install this sleeve into an Inground sprinkler housing, FIG. 4 EE and FIG. 5 EE. My sleeve my be fabricated from ABS or PVC or any material suitable for the purpose of this invention. My sleeve may have any number of v-shaped protrusions FIG. 1 AA and FIG. 2 AA running the length of the interior of tube for the purpose of securing the gear driven device for normal gearhead operation. FIGS. 1 2 and 3 Illustrates the bottom of My sleeve as partially closed with a threaded opening designed to accommodate a variation of opening sizes and thread characteristics. The partially closed bottom of the device with the threaded hole provides the versatility of being used both for water flow with an existing Inground housing or as a direct burial application. While the invention has been particularly shown and described with respect to illustrations and script, let It be understood by those skilled in the art that the foregoing and other changes in form and details may be made there without departing from the spirit and scope of this Invention. 

I claim: 1-2. (canceled)
 3. A Lawn sprinkler conversion sleeve, comprising of: a sleeve as in claim 3 for supplanting impact sprinkler heads to gear-driven heads exclusively. a body of said sleeve having external threads at the top and the bottom of said sleeve on the outside surface, the body separating the upper threads from the lower threads. a body of said sleeve having protrusions on the inside wall of sleeve running the length of the sleeve. a body of said sleeve having an opening at the top end to support attachment of a gear-driven sprinkler assembly. a body of said sleeve with an opening at the lower end of sleeve to receive pressurized water from the lower chamber of the impact sprinkler housing through the side or bottom inlet. a body of said sleeve that has no direct connection to a pressurized water source for implementation. a body of said sleeve having an internal thread at the bottom inside surface of the sleeve designed to replace a damaged impact sprinkler housing allowing for the attachment of a gear-driven head. a body of said sleeve which when threaded into impact sprinkler housings can attach a gear-driven assembly without the need for additional plumbing. a body of a said sleeve made of a durable plastic material. 